When making fine adjustments to my router fence, I don’t like the imprecision of tapping the fence back and forth, so I designed and built this micro-adjuster. I chose a 3/8-in. by 16-pitch eyebolt for the adjuster so that each revolution of the adjustment knob would provide 1/16 in. of movement. Since the fixture moves only one end of the fence, that really translates into 1/32 in. at the bit.

The fixture consists of a mounting block, an attachment knob, an eyebolt screw, and an adjustment knob through which the eyebolt is threaded. The mounting block has holes drilled every 1 in. so that the jig can accommodate a variety of fence positions. It is attached to the router table by a 1/4-in. carriage bolt driven up from beneath the table. The eyebolt screw works well for the adjuster because the eyebolt contacts the fence at a single point.

To use the fixture, attach the block to the tabletop in the appropriate mounting hole and secure it to the table with the attachment knob. With the eyebolt against the back of the fence and with hand pressure to keep the fence against the eyebolt, turn the adjustment knob to move the fence in or out. When the adjustment is right, lock the fence down.

Jim Richey

Jim Richey

Matthew H. Stern, Huntington, NY

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